SKU: 559883670

JB4 Tuner For 2016+ Lexus NX, RC, IS, GS, NS 200t & 300t - Burger Tuning

Sale price$240.73 Regular price$267.48
Save 10%

Pay in installments of $66.87 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

JB4 Tuner For 2016+ Lexus NX, RC, IS, GS, NS 200t & 300t - Burger TuningPower gains are up to 45 crank horsepower and up to 45 crank torque over stock This plug and play tuner attaches to easy to access sensors in your Lexus engine bay and works with your factory DME tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful

Power gains are up to 45 crank horsepower and up to 45 crank torque over stock


This plug and play tuner attaches to easy to access sensors in your Lexus engine bay and works with your factory DME tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance.

No ECU flash needed and compatible with locked 🔒 ECUs

Power gains are up to 45 crank horsepower and up to 45 crank torque over stock, at the default map1 setting. With race gas or E85 mixtures, higher power gains are possible. Boost is adjustable using a BMS Data Cable or Bluetooth adapter. Includes fully OBDII based CANbus operation for unrivaled tuning performance, features, and functionality.
Installation is very discrete and it quickly removes without a trace when needed. Fuel economy during normal driving is unchanged.

Wirelessly Connect to your JB4: Grab our all-new JB4 PRO smartphone connection to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look. The JB4PRO Free app features an intuitive easy-to-use interface, help buttons, and advanced log analysis tools that can estimate the performance of your car and help identify any tuning concerns. For more info on how to use the JB4PRO free app click here.

JB4 Features & Benefits

• Increases horsepower/torque making your Lexus faster
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 tuning software and up to 8 maps for various fuel and modification levels
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• View and record up to 40 different gauges/engine parameters in real-time with the JB4 app.
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
• Quick Plug & Play Installation
• CANbus OBDII integration offering unrivaled tuning features and performance
• Improved performance over non-integrated chip tunes
• Runs as smoothly as stock, this is how your vehicle should have come from the factory
• Compatible with all driving modes
• Fuel economy unchanged during normal driving
• Premium 91 octane fuel or better required for performance gains
• Not VIN locked and can be removed without a trace and resold down the road
• Includes the rugged JB4 billet aluminum enclosure for protection
• Made in the USA
• 5 year warranty

Vehicle Fitment

• 2016-Present Lexus RC 200t
• 2016-Present Lexus IS 200t
• 2016-Present Lexus GS 200t
• 2016-Present Lexus IS 300t
• 2016-Present Lexus NS 200t
• 2015-Present Lexus NX 200t
• 2018-Present NX 300

What is a JB4?

The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.

Is the JB4 a real tune?

Yes the JB4 is a real tune. By tapping into specific sensors and CANbus for real time vehicle data the JB4 is able to alter your boost, timing, AFR, and/or fuel trims, to a similar degree an ECU reflash would, but without the vehicle ever knowing its been tuned. The result is safe, smooth, and significant power and torque gains while retaining your factory safety systems and without having to unlock/flag your ECU.


DYNO RESULTS

2016 Lexus IS 200t stock vs. BMS JB4 tune, default settings

 JB4 Install Video

 

 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 559883670

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
David L. Lancaster
Birmingham, US
★★★★★ 5
Great!
Color: Black/Black/ Wjite Digital, Color: Black/Black/ Wjite Digital
Great, Just as I remembered them! The only difference is, a shorter band. I thought I had small wrists for a man, but with this band I have to use the last hole to be comfortable . I may add one more hole to the band!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
Jimmy
Lexington, US
★★★★★ 5
Takes a Licking and Keeps on Ticking
Color: Green/Black
I love this watch despite the fact that it is really a toy. I love the look of the watch, I love how lite the weight of the watch is on my wrist, and it really does keep good time if you manage the solar charge properly. Other than looking cool on your wrist, this watch has absolutely no functions other than time keeping. The black plastic bezel is molded into the case and does not turn, so don't plan on using that. The watch has no light, the dial numbers are non-luminous and the hands are very limited in terms of luminosity. No buttons. All you can do is adjust the time and date by pulling out what used to be a winding stem in the good old days. The small tag on the strap with Geographic coordinates shown on it indicate the location of the old Timex manufacturing facility (SW of Waterbury, CT). I have a nice ledge at my bedroom window and it gets good western sun for a good part of the day regardless of the time of year. On this ledge you will find a half dozen solar powered watches (mostly Casio) properly aligned to maximize the charge they may receive each day. Note that the description for this Timex watch specifically states that a lightbulb won't charge this watch. You need direct sunlight for several hours if you want to get more than a 3-week charge into this watch. So, I'll leave you with a couple of tips, my friends; 1.) If you are looking for a first watch to give your outdoorsy oriented Son or Daughter, then give them this one. Why? Because it is cool looking, fairly well built, and it actually works, 2.) After you receive your Timex watch, be sure to keep the display mount it is packaged with. It makes a great fixture to mount your watch on for charging and allows you to maximize the position of the solar cells on the dial so that you can optimize charging time. Have Fun! Jimmy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
N
Verified Purchase
Nuka Shroom Soup
Waukegan, US
★★★★★ 5
Excellent value, flawless performance for well over a year and no signs of quitting.
Color: Green/Black
Excellent value, had this for well over a year and it still keeps perfect time, still water resistant. No worries about having to change batteries. Owned a fancy expensive (battery) watch once and the dept. store repair intentionally sabotaged the watch in the hopes I would purchase another from them. Yeah, good luck with that, lost my business forever. This is the 21st century, cell phones are the new time pieces, but solar is totally reliable and Timex makes it happen. Holds a charge for many months, although I prop it in a bright window for a few days every few months or so just to make sure the cells are always fully charged, although it's probably unnecessary, just being over cautious. I haven't actually experienced this watch ever running out of power even after months of use. Damn impressive, as it should be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025
B
Verified Purchase
Bill
Cuba, US
★★★★★ 4
Good value for solar watch
Color: Black/Orange
Nice watch! It is plastic like but it is solar. No indiglo button only a little luminous on the hands so you don't want to wear it in tje dark and expect to check the time. 45mm case is good size for my wrist and the band works good also, Not too long not too short. Overall a good watch with no problems
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
B
Verified Purchase
Barry Vercueil
Phoenix, US
★★★★★ 5
Amazing Solar for the price
Color: Black/Orange, Color: Black/Orange
Great watch. Very good visibility. Ligh and feels quality. Easy to swap straps. Same size as my Casio Duro. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026

recommand products